20451621 is an odd 8-digits composite number following 20451620
and preceding 20451622 . In scientific notation, it is written as 2.0451621 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13442240 positive integers (up to 20451621) that are relatively prime to 20451621.
20451621 has 8 divisors, whose sum is 27653184
The reverse of 20451621 is 12615402
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred fifty-one thousand six hundred twenty-one
Scientific notation
2.0451621 × 10^7
Engineering notation
2.0451621 × 10^6
Prime Factorization
3 × 71 × 96017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451621
Product of the distinct prime numbers
The prime factorization of 20451621 is 3 × 71 × 96017.
Since it has a total of 3 prime factors.
4 , 4 , 89 , 10 , 335 , 837 , 3634 , 8901 , 73228 , 88236 , 858901 , 269021 , 4902112 , 9000557 , 88104554 , 56725384 , 102603421 , 185563657 , 9519219021 , 8586286087
n×2
40903242
n×3
61354863
n×4
81806484
n×5
102258105
n÷2
10225810.5
n÷3
6817207
n÷3
5112905.25
n÷5
4090324.2
n2
418268801527641
n3
8.5542750049675E+21
n4
1.7494879033137E+29
n5
3.5779863542656E+36
2 √n
4522.3468464946
3 √n
273.46971959493
4 √n
67.248396609099
5 √n
28.983147511081
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20451620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20451621 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000001000100100101
3
Ternary
1102111001100110
4
Quaternary
1032001010211
5
Quinary
20213422441
6
Senary
2010203233
8
Octal
116010445
10
Decimal
20451621
12
Duodecimal
6a23519
16
Hexadecimal
1381125
20
Vigesimal
67g911
36
Base36
c6ckl
md5
07726e4cbe2f70baf6a261b665fcfae3
sha1
dd31102b5c9acc50a8a7bf777d2cc09fada207ee
sha256
6294353c7fc80d1e20e713f61dba3be40a146eae8ad21ff7aadf0aab44f7eee3
sha512
832c40d2e11de4c9e1458e7bd0f5aa5dbe8da11bb55788e94bfec7a8e87f25bb42574d5fc1dc96ab1922b19ac511e3ddf5e84eb43d4e5a80d3fc195f9f845ed9
ripemd-160
8337005b2e8a553d133cf2825ebd727b782adaac
Diameter
40903242
Circumference
128501324.57521
Area
1.314030194105E+15
Volume
3.5832063349857E+22
Surface area
5.2561207764202E+15
Circumference
128501324.57521
Perimeter
81806484
Area
418268801527641
Diagonal
28922959.790714
Surface area
2509612809165846
Volume
8.5542750049675E+21
Space diagonal
35423246.669143
Perimeter
61354863
Area
1.811157038667E+14
Altitude
17711623.334571
Surface area
1.811157038667E+14
Volume
1.0081309773579E+21
Height
9640986.5969048